44results about How to "Keep security" patented technology

The invention relates to the technical field of full-biodegradable films, in particular to a full-biodegradable antibacterial PLA / PBAT film and a preparation method thereof. The full-biodegradable antibacterial PLA / PBAT film is prepared from the following raw materials in parts by weight: 65 to 85 parts of PLA, 15 to 35 parts of PBAT, 8 to 15 parts of a composite antibacterial agent, 2 to 5 parts of a coupling agent, 0.1 to 0.5 part of a lubricating agent and 0.3 to 0.8 part of an antioxidant, wherein the composite antibacterial agent is prepared from epsilon-polylysine hydrochloride and talcum powder through a modification preparation method. According to the fully-biodegradable antibacterial PLA / PBAT film provided by the invention, two fully-biodegradable polymers PLA and PBAT are selected as matrixes, and inorganic filler talcum powder is adopted as a carrier to disperse an antibacterial active center epsilon-polylysine hydrochloride, so the PLA / PBAT film becomes a fully-biodegradable novel composite material with excellent mechanical properties and antibacterial properties.

The invention discloses a blockchain-based trade document management system and a blockchain-based trade document management method. The blockchain-based trade document management system comprises a trade blockchain, and a trade platform, a demander node, a financing node, a supervision node and a block verification unit which are connected with the trade blockchain through a network, wherein thetrade blockchain is used for storing original trade information and trade process documents related to financing and supervision in the form of blocks; the trade platform, the demander node, the financing node and the supervision node insert block data of the original trade information and the trade process documents into the trade blockchain; and the block verification unit is used for performinginformation tampering and information integrity verification on the block data. Thus, the technical purposes of applying the blockchain technology in the trade circulation field so that information of independent institutions such as demander and supplier, financing, taxation and supervision is shared safely, storing the trade process documents generated in the approval and audit processes and the original trade information separately, and performing tampering verification and integrity checking can be achieved.

The invention relates to a preparation method of a low-emission thermal insulation film for laminated glass. The preparation method is characterized by taking a PVC film, a PET film, a PP film or a BOPP film as a carrier, and adding a treatment agent (2) with the concentration of 1-5% to waterborne resin and acetone, butyl acetate or ethanol or to a mixed solution thereof to obtain surface treatment solution to be applied to a surface of the low-emission thermal insulation film; or performing hot pressing on the surface at the temperature of about 50-120DEG C and the pressure of about 1-3kg / cm; or modifying the film surface by means of corona or a combination of the methods; and making coating by purchased or self-made ATO, tin indium oxide or tin oxide or combination paste thereof as well as waterborne acrylic resin, waterborne polyurethane resin or waterborne epoxy resin and applying the coating to the film to form a thermal insulation reflector which is closely adhered to the film; and then adding a treatment agent (1) to the waterborne acrylic resin to make treatment solution, and performing secondary treatment on the film surface with the thermal insulation reflector and the film surface without the thermal insulation reflector so as to obtain the low-emission thermal insulation PVB film closely adhered to the laminated glass.

The invention discloses a private transaction processing method, a public node, a transaction related node and a public block chain system. The method comprises the following steps: initiating a transaction; generating a symmetric encryption key, and encrypting transaction contents in the transaction content field of the transaction by using the symmetric encryption key to obtain first encrypted data; respectively encrypting the symmetric encryption keys by using the public keys of all transaction related nodes needing to execute the transaction to obtain second encrypted data; Packaging the first encrypted data and the second encrypted data, and uploading the packaged data to a distributed storage system; Receiving a Hash value returned by the distributed storage system; Filling the Hashvalue into the transaction content field; Broadcast transactions. According to the method provided by the invention, the security and reliability of a large number of nodes of the public block chain system can be reserved, and the privacy data of the user can be effectively ensured.

A multiple charging unit for charging different batteries and / or electronic devices at the same time. The charging units can be removably interchangeable from a housing unit or relatively fixed into the housing unit, and can be adapted to attach a variety of batteries and / or electronic devices. The charging units can also work in conjunction with a communication unit to allow attached electronic devices to communicate with other attached electronic devices or an outside electronic device. The multiple charging unit can also have a data retention unit to store data from attached electronic devices and / or transmit stored data to attached electronic devices.

A showcase has a front wall which defines a showroom for a commodity in cooperation with other walls on a customer side, and includes a transparent portion. The showcase also has a support device that supports the transparent portion in such a way that the transparent portion is allowed to be translated to a direction away from the showroom.

A secondary restraint for restraining an animal in the event of the failure of a primary restraint. The secondary restraint preferably includes a length of nylon fabric having a ring on one end and a releasable hook on the other. The ring is sized so that the hook will fit through the ring. In use, the length of fabric is wrapped around the neck of the animal to be restrained, and the hook is passed through the ring. The hook is then attached to a ring on the primary restraint. If the primary restraint, such as a collar or harness, slips from the animal, the leash attached to the ring on the primary restraint will pull freely, tightening the secondary restraint and preventing the escape of the animal being restrained.

The invention discloses a face identification intelligent greeting method. The method comprises the following steps: guests can be registered at a reception through a guest terminating machine; afterguest registration is completed, the guest is introduced into an identification scope of a camera, the camera is used for taking pictures of the guests, a face image with best quality is extracted from a video stream transmitted by the camera by a face identification server, the face identification server compares a snapshotted head portrait with a photograph in a database; whether a door is opened or not is determined according to the comparison result, if the comparison is consistent, identification success is prompted, the doors can be simultaneously opened, if the comparison is inconsistent, the identification inconsistency is promoted, and the door cannot be opened. The invention provides a face identification intelligent greeting system. The original face identification gate inhibition security is kept, the access convenience is increased, a dynamic non-cooperation mode is employed for face verification, compared with a traditional card-swiping gate inhibition mode, the system ismore convenient, and due to uniqueness of the face characteristics, the problems of certificate forgetting and false certificate can be solved.

The invention relates to an extraction method for effective components of traditional Chinese medicine. The extraction method for effective components of the traditional Chinese medicine comprises the following steps: 1) adding the traditional Chinese medicine into sufficient water for soaking, adding maltose and glycoside synthetase at the same time in a soaking process and keeping the temperature at 40 to 50 DEG C, wherein the traditional Chinese medicine comprises fructus crataegi, semen raphani, semen cassiae, dried tangerine or orange peel and herba lycopi; 2) decocting the soaked traditional Chinese medicine to get aqueous solution; 3) adding the glycoside synthetase to the aqueous solution after cooling, and conducting hydrolysis reaction at 40 to 50 DEG C to obtain hydrolysis solution; 4) filtering, concentrating and drying the hydrolysis solution under reduced pressure to get traditional Chinese medicine extract. The extraction method for effective components of the traditional Chinese medicine can improve the extraction rate of flavone in the traditional Chinese medicine by a water extraction method.

An apparatus for giving assistance in analyzing deficiency in a RTL-input program, includes a partial RTL creator which creates partial RTL description data containing logic description identical with logic description extracted from successive portions of input RTL description data, and having correspondence in signals identical with the same in the input RTL description data, an estimator which receives the partial RTL description data to execute a RTL-input program, and creates error-judgment data indicative of whether the RTL-input program contains deficiency, and an execution controller which controls a volume of logic description contained in partial RTL description data to be next created by the partial RTL creator, based on the error-judgment data, and outputs partial RTL description data causing the same deficiency as deficiency of the input RTL description data, and having a minimum volume of logic description.

The invention relates to the technical field of manufacturing a concave grass bedding, in particular to a manufacturing technique of a concave grass bedding. The manufacture technique comprises the steps of paving, pressing and packing; lapping amount is set to be 200-350mm; working pressure is set to be 4-5 times the supporting pressure of the grass bedding; a pressure sensor is used for measuring and displaying the pressure applied to each part of the concave grass bedding and sending the pressure to a PLC controller; the pressure applied to each part of the concave grass bedding and depressing position thereof are measured; when the grass amount paved, pressure and position are adjusted to be equal to the values set, pressure application is stopped; after pressing, the steps of packing and perforation are carried out. A fabric cover is used for wrapping the concave grass bedding of which two end parts are paved with short grass additionally; the pressure sensor is arranged in a lower mould; a limit switch is arranged on a chassis; the sensor, a control panel and the PLC controller are connected with each other. The invention provides a concave grass bedding manufacturing technique with further improved technical parameters, which automatically detects the pressure and position, can ensure safe production and produce completely qualified products.

The invention discloses a private transaction processing method, a public node, a transaction-related node, and a public blockchain system. The method includes initiating a transaction; generating a symmetric encryption key, and using the symmetric encryption key to pair the transaction content field of the transaction Encrypt the transaction content to obtain the first encrypted data; use the public keys of all transaction-related nodes that need to execute the transaction to encrypt the symmetric encryption key respectively to obtain the second encrypted data; pack the first encrypted data and the second encrypted data, and upload To the distributed storage system; receive the hash value returned by the distributed storage system; fill the hash value into the transaction content field; broadcast the transaction. The method provided by the invention can effectively guarantee the privacy data of users while retaining the security and reliability of a large number of nodes in the public blockchain system.

A system and method for encrypting an electronic file in a mobile electronic device reads bytes of the electronic file from a cache of a memory system and divides the bytes into a plurality of byte lines. The system and method further assigns a numerical cipher to each byte line and searches a position of each numerical cipher in a corresponding byte line. Furthermore, the system and method encrypt each byte line by inserting one or more random bytes into each byte line, and generates an encrypted electronic file by combining all the encrypted byte lines.

The smart suspension is compilation of air coils (air cylinder and air piston) as well as smart hydraulic shock absorber that in respect their roles are making comfort and improving vehicles balance. Regardless of the vehicle, the height adjustment system being used in smart suspension, adjusts the height and has the ability to drive in any desirable heights without losing a bit of comfort and safety (lowest to the highest elevations). There are two manual and automatic height adjustment systems, automatic system is being activated by disembarking passengers and manual system is set using the electronic key. These changes can range from 1 mm to 20 cm which in both conditions there would be no change in safety or any uncomfortable feeling.

The invention relates to a refitting device and method for quickly refitting an electronic lock into a wireless networking lock, and the electronic lock with the refitting device. The refitting device and method are mainly used for electronic locks. A power module is connected with a first plug-in module, a second plug-in module, a control module and a motor drive module. The positive electrode of a light-emitting diode of a first optocoupler is connected with the first plug-in module and the second plug-in module, and the negative electrode of the light-emitting diode of the first optocoupler is connected with one end of a third resistor. The other end of the third resistor is connected with the first plug-in module and the second plug-in module. The positive electrode of a light-emitting diode of a second optocoupler is connected with the negative electrode of the light-emitting diode of the first optocoupler, and the negative electrode of the light-emitting diode of the second optocoupler is connected with the positive electrode of the light-emitting diode of the first optocoupler. One end of a second resistor is connected with the collector electrode of a phototransistor of the first optocoupler, and the other end of the second resistor is connected with the control module. One end of a first resistor is connected with the collector electrode of a phototransistor of the second optocoupler, and the other end of the first resistor is connected with the control module.